Hi Geoffrey, machine looks like an 1968 3Cmk2, first of the mk2's, i think i am right in saying that they only made this style for about a year, the story goes, drivers complained about cab, as 3c mk1 operators were bashing their heads on the windscreen, as they were used to front sloping windows, so they brought out the new improved version, with front sloping windows and altered design around the toolbox/fuel filler, with an improved middle step... which stayed through out the mk2' models.
![Image](http://www.classicmachinery.net/forum/images/userpix/109_ESC2ICQF547B1454543764.jpg)
![Image](http://www.classicmachinery.net/forum/images/userpix/109_2NS3DASJ7WYS81454543765.jpg)
As for tyre pressure, you might answer in here.
http://www.classicmachinery.net/forum/app.php/dl_ext/?view=detail&df_id=45 Hope this helps
![Rock on :rockon:](./images/smilies/icon_rockon.gif)